{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-7jo9gmg6","versions":[{"created_at":"2026-06-10T23:35:21Z","element_count":66,"note":"legacy fix(polish再汚染): 平屋floors2→1 / jpy90050184→quote21190474 (旧polishコード再書き込みの再是正・rollback=m5:legacy_fix_rollback.jsonl phase=polish_recontam)","saved_by":"mcp","sha256":"0208c82c0c5e4ad239271fd17caed9c2b9ff50c17d7923017985168cc2457ae6","version":11},{"created_at":"2026-06-10T23:08:12Z","element_count":91,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"49668ff52ca6ef66092a255507e387fe3653106aa9dec5fbfefa5beae57c2931","version":8},{"created_at":"2026-06-10T23:07:33Z","element_count":47,"note":"legacy fix: rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"2300c0b59cbe0945c010b035317eca1329eea9cbece8ec84ad17a95ec9c968a7","version":7}]}